Rim-operating tool



L. H. PERLMAN. RIM OPERATING TOOL.

APPLICATION FILED DEC.4, 1916- 1,374,102. Patented Apr. 5, 1921.

L. H. PERLMAN. RIM OPERATING TOOL. APPLICATION FILED DEC. 4. 191e.

L T an 5m Nw Am ds IZ m Dl.

A UNITED STAT-Es* PATENT oFFicE.

Louis i1. PEBLEAN, or NEW Yoan, N. Y.

RIM-OPERATING Toor..

Application led December 4, 1916. Serial No. `185,071.

T o all whom t may concern.' l

Be it known that I, Loms H. PERLMAN, a citizen of the United States,residjn at New York city, in the county of New ork and State of NewYork, have invented certain new and useful Improvements,1n

Rim-Operating Tools; and I do hereby defclare the following to be afull, clear,

of a rim for expediting and reducing the.

labor of mounting a tire on a cross cut deniountable rim and removing atire there-4 from.

'With this and further objects in view as will in part hereinafterbecomeapparent andin part be stated, the invention comprises certain novelconstructions, combinations and arrangements of parts as subsequentlyspecified andl claimed.

In the accompanying drawing,-

Figure 1 is a vlew in side elevation of a tool embodying the features ofthe present invention and shown as applied and in its position justprior to the beginning of an operation of manipulating a rim.

Fig. 2 is a sectional elevation thereof, the tool having been moved tothe rim collapsing`position.

*ig. 3 is a plan view of the parts seen in Fig. 1.

Fig. 4 is a detail plan view of the tool receiving socket, a fragment ofthe rim bein shown.

Iig. 5 is a vertical section taken approximately on the plane indicatedby line 5-5 of Fig. 1.

Fig. 6 is a transverse section taken on the planes indicated by line6--6 of Fig. 1, the parts being seen in elevation.

Fi indici-ted by line 7-7 of Fig. 1.

Fig. 8 is a perspective view of a rim adapted for receiving the tool.

and exact description of the invention, such as 7 is a similar viewtaken on the plane Fi 9 is a perspective view of the tool ld etac edwith the extension handle omitted. Fig. 10 1s a fragmentary, enlarged,detail- `section taken through a 4modified form of tool receiving socketof, the rim.`

Referring to the drawing by numerals, 1

indicates an operating lever which is pivoted on a shaft 2 and has oneof its ends fulcrumed on pivot 3 carried by a bifurcated bar or fulcrumpost 4. The free end of the post 4 is formed cylindrical and providedwith diametrically opposite outstandin locking pins 5. The shaft 2 issurrounde by sleeves 6, 6, arranged at opposite sides of the lever 1 andserving as spacers therefor. The shaft 2 is provided with heads at itsends", and between the heads of" the shaft and the outer ends of thesleeves 6 4re 1arranged-.links 7, 7, the. links being SpecificationofLetters Patent. Patented Apr. 5, 1921.

pivoted onto the shaft in a position to swing freely thereon. The freeend of each link is bent substantially at right langlesand is preferablytapered to form a hook 8. Each hook 8 is relatively straight but asvwill'become apparent serves the purpose of an ordinary hook. The links7 aref connected near their free ends by a cross rod 9 having a head atone end engaging oneof the links and a nut 10` threaded onto theopposite end portion and engaging the other link.

- An appropriate washer may be employedA between the nut and link asalso between the head of rod 9 and the adjacent link.

The ltool is adapted foruse in conjunction with a cross cut demountablerim, such as seen at 11 in the drawing. Rim 11 is provided with a tongue12 outstanding from one end and formed with a hook 13 adapted to enter aslot 14 formed in the opposite end of rim 11 for receiving said hook.The flanges of rim llfat the slotted end are formed with apertures 15for receiving the hooks 8 of link 7 The opposite end portion of the rim11 is provided with a radially-inwardly extending projection or stud 16which is riveted or otherwise fixed to the rim. The stud 16 is formedwith an axial recess overhung by a substantially annular flange 17, theflange being interrupted at diametrically opposite points by radialopenings or slots 18. vThe slots 18 are disposed to be intersected by aline extending transversely of the rim and are .of a size adapted topermit the passage of the posed to extend in a direction transversely ofthe rim, as indicated in dotted lines in Fig. 3. The pins 5 arepassed'through thev slots 18 and then the lever .1-is swung to aposition substantially alined with the rim, during which movement vthepins 5 are moved beneath the overhanging lflange 17. Thus the post 4 isquickly and effectively anchored .to the rim. The links then are causedto engage the opposite end portion i of the rim by having the hooks 8inserted in the apertures 15 and the nut 10 threaded up suliiciently fortightening the links in the given position.

The lever 1 is offset at 20 and provided with a terminal portion 21adapted to receive a complemental operating tool 22 of any appropriatelength, the tool or handle 22 being formed with a Socket to snuglyreceive the portion 2l. The oli'set 20 enables the handle 22 to lieoutside the planes ofthe rim 11, and offset 20 is cient length to leavethe handle 22 entirely free of the adjacent edge of the rim so as tofacilitate manual manipulation.

The parts being assembled as above described and as seen in Fig. 1, theoperator grasping the lever 22 swings the saine preferably ofsuiiithrough an arc of approximately 220 de- L The effect of thismovement is togrecs. cause the links 7 to travel throu h such a path aseffects first a movement o? that end ofriin 11 engaged by the linksinward to an extent freeing the end from engagement with hook 13, andthen to move toward the bar 4 until the end portions of the rim are inthelapping position seen in F ig. 2. This movement brlngs the pivots forlinks 7 represented by rod 2 below the plane of the pivot 3 and at theopposite side from the position formerly occupied so that the pull ofthe rim ends incident to the tendency of the rim 11 to assume its formercondition is eifectively'resisted and they parts are locked in theircollapsed condition. This collapsing movement results in a reduction inthe effective diameter of the rim 11 so that a tire with inextensiblemarginal beads may be applied or removed'without diiiiculty. The handlev 22 is preferably withdrawn from its engagement with the lever duringthe application or removal of a tire to or from the rim 11. After a tireis removed and a new tire applied. the rim 11 is expanded to its normalposition merely by re-application of the handle 22 to lever 21 and aconverse movement of the parts from that producing the collapsedcondition of the rim 11. Re-

.- pins 5 and coperating slots are the equivaent of threads and anyother form of threads or other appropriate connecting means may beutilized, but it is especially desirable that the locking of the post 4to the studA 16 shall be accomplished quickly and effectively so as toprevent loss of time and obviate possibility of accidentaldisengagement. The cylindrical portion of the post 4 is proportioned tolit snugly in the socket or bore of the stud 16 so that the post 4' mayserve as a' fulcrum post andwithout liability of objectionable loosenessor play.

The projecting tongue 12 may be formed in any appropriate manner, thesaid tongue being produced in the structure shown in the drawing by theprovision of a separate plate welded or otherwise appropriately anchoredto the web of the rim 1. 'Other shapes of` tongues and other methods ofconnection therefor may be provided as may be desired.

It is to be noted that the rim 11 is vided with a valve stein hole at 19surrounded by the usual drivin stud, the hole 19 bein located vin thateng portion of the rim 11 w ich carries the socket provided by stud 16An important advantage of this arrangement arises from the fact that thedistortlon ofthe rim when being collapsed occurs along that end portionwhich is provided with the apertures 15, and the end portion carryingstud 16 is not relatively distorted whereby the Avalve stem extendingthrough the hole 19 is not subjected to the strain ofthe shifting of aportion of the rim. In other words, the end portion of rim 11 which isprovided with apertures prol5 is actually swung inward with the moveyment of the tool as described, and if the valve stem hole 19 wereprovided in that portion of the rim which is thus swung, there would bevalve stem out of place and to strip material off of the stem incidentto movement of the rim end portion independent of the tire mountedthereon.

While the stud 16 which provides the post receiving socket has beenshown as one effective means of receiving the post 4, other forms ofsockets may be employed, as for example such as is Seen in Fig. 10wherein the material of the rim 11 is stamped to form a stud 16 havingthe socket or bore provided with the overhanging iiange 17 and the slots18 for admitting the pins 5 of the post. 1When the stud is formed in thensf/eroe manner seen at 16 the socket would open through the rim if notcovered, and, therefore, a cover pla-te 16 is provided and fixed to theouter riveting, Welding or the like, and is provided preferably With arecess 16a for snugly receiving the extreme end portion of the post 4.l/Vhat I claim is 1 l. In an operating tool for manipulating a cross-cutdemountable rim, a fulcrum post comprising a. bar having apivot-receiving end, and a rim-engaging end, the rim-engaging end beingdimensioned and shaped to lit detachably Within a locking socket,l andmeans at the rim-engaging end for detachably and rigidly locking saidend in a socket.

2. In an operating tool for manipulating a cross-cut demountable rim, afulorum post comprising a bar having a pivot-receiving end and arim-engaging end, the rim-engag ing end being dimensioned and shaped totit detachably Within a locking socket, and a laterally extendingprojec'iion at the rimengaging end for' detachably and rigidly lockingsaid end in a socket.

3. An operating tool for manipulating a cross-cut demountable rimcomp-rising a lever, a ulcrum bar pivoted 'thereto and shaped to tWithin a socket on a rim for deface of the web of the rim as by ytaohably and rigidly engaging the rim, and a link pivoted to the leverand having means of'engagement with a rim.

4. In an operating too-l for manipulating a cross-cut demountable rim, aulcrum post comprising a bar having a pivot-receiving end and arim-engaging end, the rim-engaging end being dimensioned and shaped toit detachably Within a locking socket, and diametrically oppositeprojections at the rimengaging end for detachably and rigidly lockingsaid end in a socket.

5. An operating tool for manipulating a cross-cut demountable rimcomprising a lever, a ulcrum post pivoted thereto and adapted todetachably but rigidly engage a rim, said post and lever beingproportioned and adapted to operate effectively when the,

post engages a rim directly in the median line thereof and a link alsopivoted to the lever and having means of direct engagement With the rim.

In testimony whereof I affix my signature in presence of two Witnesses.

LOUIS I-I. PERLMAN.

Witnesses:

I. B. LEIBsoN, EMMA M. FRHLING.

